Snow-plow



(No Model.)

A. M. BURNHAM. SNOW PLOW No. 530,614 Patented Dec. 11, 1894.

rrsn STATES ARTHUR M. BURNHAM, OF GARDIN ER, MAINE.

7 SNOW-PLOW.

SPECIFICATION forming part of Letters Patent No. 530,614, dated December 11, 1894.

Application filed April 17, 1894.

To all whom it may concern:

Be it known that I, ARTHUR M. BURNHAM, a resident of Gardiner, in the county of Kennebec and State of Maine,have invented certain new and useful Improvements in Snow- Plows; andI do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and usethe same.

. My invention relates to an improvement in snow plows, the object of the invention being to-producea snow plow which shall be so constructed and arranged that it can be made to pass in a straight line through deep snow or drifts without removing the snow the ful width of the road.

A further object is to so construct the device that it can be adjusted to either remove all the snow from the road bed in the line of travel of the plow, or to remove only a portion of the snow, leaving aportion of the snow on the road, the device being also arranged to smooth and press such snow as may be left on the road, in order to render the road good and smooth. i g

A further object is to produce a snow plow which shall be simple in construction, easy to operate and efiectual, in every respect, in the performance of its functions.

With these objects in view the invention consists in certain novel features of construction and combinations and arrangements of parts as hereinafter set forth and pointed out in the claims.

In theaccompanying drawings: Figure 1 is a perspective view illustrating my improvements. Fig. 2 is a sectional view. Fig. 3 is a view of a modification.

A represents the runners of my improved snow plow, connected together by means of cross bars a, b, c, the front cross bar a having a sharpened forward edge adapted to act as a cutter for hard snow or ice, and the rear cross bar 0 being preferably made wide and with a beveled lower face adapted to smooth and press snow left in the road by the plow. At theirrear ends the runners A, A, are provided with standards 01,01, to which the rear end of a platform Bis pivotally connected, the rod or shaft e by means of which said parts are connected together passing through Serial No. 507,902- (No model.)

extend nearly the entire length of theplatform and throughouttheir forward portion are beveled, as at g. The forward end of the patform is made V-shaped and its edge sharpened to constitute a cutter adapted to cut hard snow or ice with which the device may come into contact.

On the platform B, a V-shaped plow C is located and adapted to move thesnow, through which the device is passed, in opposite directions. The point h of the plow preferably terminates at a point rearwardly of the front end of the platform.

Draft irons 2' are secured to the forward ends of the runners, and to these draft irons, the cross bar 2', to which the tongue 11 is at-' tached, is pivotally connected by means of suitable brackets '5 When the forward end of the platform is resting on'the forward ends of the runners, the cuttingedge of said platform will be practically in line with the bottom of said runners, so that said cutting edge will engage the snow in close proximity to the road bed and cause the snow to pass onto the platform, where it will be met by the plow G, by means of which it will be moved to opposite sides of the device.

It may sometimes be desired that a portion of ,the snow be left on the road bed,in which case the forward or cutting end of the platform will be raised so that it will not be so closely in proximity to the road bed. To readily raise and lower the forward end of the platform,the devices now to be described will be employed. The rear end of the platform is made with a slot j through which a leverD projects, said lever being pivoted between its ends to lugs projecting from the under face of the platform. To the lower end of the lever D,a rod D is pivotally connected,

the other end of said rod being secured to a wedge E,-the ends of which are disposed be tween the runners A, A, and the flanges f on the under face of the platform. It will be seen that by operating the lever D the wedge E will be moved back or forth and in conseform will be raised or lowered.

IOO

My improved plow is capable of being operated with good results in making a path through deep snow, the forward end of the platform and the cross bar a serving to cut and break hard snow and ice and the plow 0 serving to remove the snow to opposite sides of the device. When the snow is not removed entirely from the road bed (in the path of the device), the beveled face of the rear cross bar 0 will serve to smooth and press such snow as is left on the road bed so as to make the road good and passable.

It may sometimes be desired that the device shall move the snow only to one side, in which case, the plow C will be displaced by an adjustable blade 0 shown in Fig. 3, and this construct-ion may be made on a smaller scale andwell adapted for removing snow from sidewalks.

Instead of the means hereinbefore described for raising and lowering the forward end of the platform B, a cam or a screw may be used, if desired. It is evident that myimproved plow may be provided with wheels to run on a railroad track, if desired.

My improvements are very simple in construction, and efiectual, in every respect, in the performance of their functions.

Various slight changes might be made in the details of construction of my invention without departing from the spirit thereof or limiting its scope and hence I do not wish to limit myself to the precise details of construction herein set forth, but,

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a snow plow, the combination with runners having standards at or near the rear ends elevated above the runners, of a platform hinged to these standards and extending to the forward end of the plow, and means located between the platform and runners for raising and lowering the platform, substantially as set forth.

2. In a snow plow, the combination with a pair of runners, a front cross-bar connecting these runners together, said cross-bar having a sharpened forward edge, and a rear crossbar adapted to drag over and smooth out the snow remaining on the road-bed, of a plat form hinged at its rear end to the runners, and means for raising and lowering the platform, substantially as set forth.

3. In a snow plow, the combination with runners, of a presser bar secured to said runners, a platform pivotally connected with said runners and having its forward end constructed to produce a cutter, a plow located on said platform and means for raising and lowering the forward end of said platform, substantially as set forth.

4. In a snow plow, the combination with a plat-form pivoted at one end, of a lever pivoted between its ends, and a wedge connected to said lever and adapted to cause the forward end of the platform to raise or lower when the lever is operated, substantially as set forth.

5. In a snow plow, the combination with runners and standards projecting upwardly from the rear ends thereof, of aplatform pivotally connected at its rear end with said standards, a plow on said platform, a pivoted lever, a wedge located between said runners and platform and a rod connecting said wedge with the pivoted lever, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

ARTHUR M. BURNHAM.

IVitnesses:

DAVID B. LOWE, J AS. A. SHEEHAN. 

